Cylinder lock



CYLINDER LO CK Filed April 5. 193a INVENTOR NEY Patented Sept. 3, 1940 UNITED STAES PATENT OFFICE CYLINDER LOCK Samuel Segal, Brooklyn, N. Y.

Application April 5, 1938, Serial No. 200,078 9 Claims; (01. 70461) The subject matterof this invention is directed to looks and more particularly is concerned with a cylinder lock wherein a connecting bar'is connected to the rotary plug thereof to actuate bolt operating means upon rotation of the plug. The object of the invention is realized in the provision of a novel and improved connecting bar having means adapted to be readily and securely attached to a rotary plug of a cylinder lock; The invention has as a further object the-provision of a serviceable connecting bar comprising juxtapositioned and complementary pivoted components adapted to be conveniently disconnected from or be readily interlocked with a rotatable plug of a cylinder lock. Other'objects'; advantages, and features of the invention will appear from the following detailed specification considered in connection with the accompanying drawing in which:

; Fig. l is a rear perspective view of a cylinder lock showing my improved connecting bar according to the invention locked to the rotatable barrel of a cylinder lock and received in a vertical slot of suitable bolt operating means.

Fig, 2 is a view similar to Fig. 1 however illustrating the improved connecting bar locked to the plug and received in a horizontal slot of bolt operating means. 4 r

Fig. 3 is a fragmentary sectional view on the line 33 of Fig. 1.

Fig. 4 is a sectional view taken on the line 4-4 of Fig, 1, showing aportion of the rotatable plug broken away.

Fig. 5 is a view similar to Fig. 3 however illustrating the complementary components ofthe connecting bar set in an open relation to permit insertion of the connecting bar into thev plug or to permit the removal thereof.

Fig. 6 is a side elevational view of the connecting bar with swingable components thereof in an open relation.

Fig. 7 is a view similar to Fig. 6 showing the components of the connecting bar closed and Fig. 8 is a sectional view on the line 88 of Referring to the drawing, the cylinder lock is generally designated It. This lock comprises a casing H and a pin tumbler controlled, key receivable rotary plug |2 of the conventional type.

50 Attached to plug |2 by disconnectible fastening means I3 is the retainer disc plate l4 cooperating with one end of the casing to prevent longitudinal displacement of the plug |2.

The rear end of the plug is provided with a diametrically disposed vertical slot l5 and a diaof the connecting bar generally denoted S in 10 either a vertical position as shown in Fig.1 or

in a horizontal position illustrated in Fi 2;

The connecting bar S comprises two pivotally connected components or elongated members'20 and 2|. Particularly however upset rivet 22 fixed 1 toone of these components pivotally sustains the other component and in the closed relation of these components the inner faces thereof are in contact, (Figs. 4 and 8)..

In the closed relation of components 20 and.

2| the head of the connecting barpresents a T shape configuration characterized by a lug 2350f component 2| extending beyond the companion component 20, and by a lug extending beyond component 2|, or in other words, the front'end 25 of complement 2| includes the laterally extending lug 23 while the front end 26 of component 20 embodies lug 24 which projects beyond complement 2|. 7

As shown each component is provided with a w reentrant and biased recess 21 selectively utilized to receive a lower part of the retaining disc. I4 when it is desired to insert. or remove the head of the connecting bar into or from the plug, for example, in Fig. 5, the sides of the biased recess 35 21 of complement 20 is straddling the lower part of the disc l4 constituting. the lower part of vertical slot I1 and in this relation connecting bar S may be readily inserted intoor conveniently withdrawn from the plug since in this instance the long arms 28 of the components 20 and 2| have been opened or separated whereby'terminals 25 and 26 of the short arms 29 of the components or levers 20 and 2| are diverged. During opening of these components, lug 23 is caused 45.

' necting bar to the plug, the components are opened, that is,'component 2| is swung relative to'component 20 as indicated by the arrow on. component 2|. However it should be observed that in the closed relation of the components the overall distance or width X or head H which 5&5v

when closed is greater than the length of either vertical slot I! or horizontal slot l8 each of which is slightly greater than the width W of the components. But if one of the components is swung relative to the other, the overall distance or width of the head may be materially reduced, for example, to the distance y as shown in Fig. 6.

If therefore the components of head H are opened, the latter may be inserted through one of the slots H, or I8. In the example shown in Fig. 5, it is intended for purposes of specification, to insert head H into vertical slot l1, although of course this head may be inserted into horizontal slot l8, if desired. Thus in the opened relation of the head H, lug 23 of the component 2| and the adjacent corner of the companion complement 20 may be passed into the bottom part of slot [1, and in part into the alined vertical slot [5 of the plug as shown in Fig. 5 whereby the side walls of the biased notch 21 of complement 20 straddles the lower part disc l4 definingthe lower part of the vertical elongated slot IT, or in other words, after a biased notch 27 of one of the complements receives a part of disc l4 adjacent one end of one of its slots, its lug, for example, becomes clear of the opposing part of this slot and may be tilted into this slot and moved into an alined elongated slot of the plug and under such circumstances since the head of the complement is still open, the companion complement, for instance 2!, is tilted into and through slot l1 and also into slot I 5 to interlock with the walls of the latter after which the complements are closed and the head H is again in its normally expanded form (Figs. 3 and 7) whereby lugs 23 and 24 although in front of the disc l4 project beyond the ends of vertical slot I1 thereof. Thus disc or retaining member l4 serves as a stop for lugs 23 and 24 and prevents withdrawal of the connecting bar when the components thereof are in interlocking relation with the slotted end of the plug and with the connecting bar interlocked with the plug, rotation of the latter causes rotation of the connecting bar about its longitudinal axis.

In cases where it is desired 'to withdraw the connecting bar from the plug, the long arms 28 of the components are first) separated or swiveled to permit one of the biased notches 21 to straddle a part of disc I4 to permit the component containing this notch to be tilted out of the slot of the disc receiving this component or in other words, to permit the lug of this component, say 24, to be tilted out of the slot of the disc receiving this component. Where a biased notch of one of .thecomponents has received a part of the retaining disc to permit clearing of the lug of this component through the retain ing disc, the companion component can be conveniently adjusted or swiveled to permit a corner thereof adjacent the lug projected through the disc to be projected through and to be clear of the disc as is well understood. Having thus tilted one endof the head through and out of disc I4, the other end thereof may be readily removed.

It should be observed that the overall width of a terminal of the components is substantially equal to the widthw plus the length of its laterally extending lug, that is, to the distance Z and this distance is slightly greater than the length of. either of theslots I1 or l8 of the retaining disc. It is therefore apparent, that in order to conveniently project or tilt one of the terminals through .or .out of theintersecting slots of the disc, it is necessary to provide some relief therefor and for this purpose either of the biased slots 27 of the components may be utilized and the bases of such biased slots each are selectively utilized as fulcrum means to seat on and cooperate with an adjacent part of the disc straddled by the side walls of such biased slots during either removal or the insertion of the connecting bar from or into the plug.

For purposes of specification only, the connecting bar in the opened relation has been set forth as being first projected through or out of the lower part of vertical slot I! and subsequently projected through or out of the upper part of this slot but of course, it is understood that where the complements are opened, either of the biased slots thereof may be utilized to first straddle either an upper or lower part of the retaining disc and thereafter projected into or out of an opposing part of this disc and in a similar manner the split connecting barmay be readily connected or disconnected from the barrel or plug in case where it is desired to utilize the horizontal slot I8 of the disc to interlock the connecting bar with or disconnect the latter from the rotatable plug while the spindle is in a horizontal relation as shown in Fig. 2.

Each of the components of the connecting bar is provided with a plurality of spaced grooves 30 to constitute spaced weakened portions to permit these components to be readily adjusted to the desired lengths by shearing off one or more sections 3| thereof.

With the head of the connecting bar projecting through vertical slot 11 and interlocked with the plug, the complements thereof are held closed since they project into bolt operating means, that is, into a normally vertical slot 33 of a rotatable bushing 34 mounted on a back plate 35 of a lock casing. This bushing is rotated by the connecting bar and carries suitable winged parts 36. Specifically however when the complements of connecting bar S are within slot 35, the walls of the latter prevent accidental separation of the arms 28 thereof and in effect constitute means to hold these complements closed.

Where slot 33 of the bolt operating means, that is, specifically the bushing, is in a normally horizontal position (Fig. 2) the head of the spindle, when the latter is opened, may be readily connected to the plug, and projected through the horizontal slot l8 of the retaining disc 14 and interlocked with the walls of the alined.

horizontal elongated slot iii of the plug. In either case, that is, whether the connecting bar is in a vertical or horizontal position, rotation of the key controlled plug, causes rotation of the spindle about its longitudinal axis and such.

after it may be readily connected to the plug.

to assume either a normal vertical or horizontal position depending upon the normal position of the connecting bar receiving slot of the bushing controlling the bolt operating means. If the complements be sheared to proper length while connected to the plug, and this was the practice heretofore, a certain strain was placed in the retaining disc. Such strain not only caused loosening of the retaining disc but also caused the pin tumblers to be set out of alinement in the cylinder lock, consequently setting up'aconditionpreventing ready insertion of a key into the plug or removal therefrom.-

As many changes could be made in the abovev construction and many widely different speciesor structural embodiments could be devised without departing from the scope thereof, it is intended that all matter hereinbefore described in the specification and illustrated in the ac- 'companying drawing shall be interpreted as illustrative and not in a limiting sense.

i I claim:

1. In combination, a rotary plug having a slot,

a reentrant notch in one side thereof and a lu extending laterally from an opposing side thereof, the lugs-of said complements extending in opposite directions, and means pivotally connecting said complements to permit relative movement of said terminals towards and away from each other whereby said terminals may be moved apart to permit said lugs to move towards each other to permit exposing one of said notches to a wall of said opening and permit the walls of said last mentioned notch to straddle said wall to permit tilting of said terminals into and through said opening and slot whereby said complements may be closed in moving said lugs outwardly relative to each other to dispose the latter in front of said retaining member and cooperate therewith to prevent withdrawal of said complements therefrom.

2. In combination, a rotary plug having a slot, a retaining member carried by said plug and including an opening in alinement with said slot, an elongated connecting bar comprising juxtapositioned complements, each of said complements including a terminal having a length greater than the length of said opening and each terminal having a reentrant notch in one side thereof and a lug extending laterally from an opposing side thereof, the lugs of said complements extending in opposite directions and a portion of one of said complements normally extending beyond the notch of its opposing complement, and means pivotally connecting said complements to permitrelative movement of said terminals towards and away from each other whereby said terminals may be moved apart to permit said lugs to move towards each other to project at least one of said notches at least in part beyond adjacent'but opposing portions of said complements to permit the walls of said last mentioned notch to straddle a wall of said opening to allow tilting of said terminals into and through said opening, and whereby saidcomplements may be closed in moving said lugs outwardly relative to each other to dispose the latter within said plug and in advance of said retaining member.

3. In combination, a rotary plug having a slot, a retaining member carried by said plug and including an opening in alinement with said slot, an elongated connecting bar comprising juxtapositioned complements each including a terminal having a length greater, than the length of said slot but less than the length of said opening and each terminal having a reentrant notch in one side thereof and a lug extending laterally from an opposing side thereof, the lugs of said components extending in opposite directions, and the body of the terminal of one of said complements normally extending beyond the notch of its opposing complement in the closed relation of said complements, and means pivotally conneoting said complements to .permit. relative movement of said terminals towards and away from each other, said complements adapted to be moved apart or opened to permit said lugs to move towards each other to project said notches at least in part beyond adjacent but opposing portions of said complements to permit one of said notches to receive a wall of said opening .to allow said terminals to be tilted into said opening and slot to be interlocked with said plug and prevented from withdrawal therefrom by said retaining member in the closed relation of said complements.

l. In combination, a rotary plug having intersecting slots, a retainer carried by said plug and including intersecting openings in alinement with said slots and of a length less than said slots, an elongated connecting bar comprising juxtapositioned complements defining a head including opposed terminals each having a length greater than the length of one of said openings and each having a reentrant notch in one side thereof and a lug extending laterally from an opposing side.

complements and presenting an overall lengthgreater than the length of one of said openings, said terminals in the open relation thereof presenting a length appreciably less than said overall length and presenting said notches to extend beyond opposing but adjacent portions of said complements whereby one of the notches may receive a wall of one of said openings to permit tilting of said head into the latter and into the alined slot thereof whereby said head may be positioned in said last mentioned slot to interlock with said plug, said terminals adapted to be closed in the interlocked relation of said head and plug to dispose said lugs beyond the last mentioned opening and cooperate with said retaining member to prevent withdrawal of said head from said plug.

5. A connector comprising an elongated bar having a terminal provided with spaced sides and a notch disposed in one of said sides adjacent a corner of said bar and a lug integral with said bar and extending laterally of another side thereof, an elongated bar disposed in juxtaposition in re. spect to said first mentioned bar and including a terminal having spaced sides and a notch disposed in one of said sides adjacent a corner thereof and a lug disposed in opposition to the last mentioned notch and in alinement with said first mentioned lug, and means pivotally connecting said bars.

6. A connector comprising an elongated bar having a terminal provided with spaced sides and a notch disposed in one of said sides adjacent a corner .of said bar, a lug integral with said bar and extending laterally of an opposite side thereof, an elongated bar disposed flatwise in juxtaposition in respect to said first mentioned bar and including a terminal having spaced sides and a notch disposed in one of said sides adjacent a corner thereof and a lug extending laterally of said last mentioned bar and disposed in opposition to the last mentioned notch, and means pivotally connecting said bars,

'7. A connector adapted to be opened and closed and comprising an elongated bar having a terminal provided with spaced sides and a notch disposed in one of said sides adjacent a corner of said bar, a lug integral with said bar and extending laterally of another but opposing side thereof, an elongated bar disposed in juxtaposition and opposition in respect to said first mentioned bar and including a terminal having spaced sides and a notch disposed in one of said sides adjacent a corner thereof and a lug disposed in opposition to the last mentioned notch, and means pivotally connecting said bars, the alternate sides of said bars each embodying one of said notches and upon opening of said connector said lugs move towards each other to displace said notches beyond adjacent but opposing portions of said bars.

8. A connector adapted to be opened and closed and having a pair of opposing and juxtapositioned pivoted bars each having a terminal including a lug and a notch opposing said lug, said terminals having end faces disposed in alinement in the closed relation of said terminals and said lugs projecting appreciably beyond an adjacent notch of an opposing bar of said pair, said terminals adapted to be pivotally shifted to move said terminals towards each other to move said faces out of said alinement and project said notches beyond adjacent but opposing portions of said bars.

9. A connector having a pair of opposing and juxtapositioned bars each having a terminal including a corner lug and an opposing notch, means pivotally connecting said terminals, said terminals having end faces disposed in alinement in the closed relation of said terminals and in the closed relation of said terminals portions said bars project beyond said notches, said bars adapted to be pivotally shifted to move said terminals towards each other to move said faces out of said alinement and project said notches beyond and be free of said portions, said terminals during their out of alined relation of said faces having an overall length appreciably less than their overall length when said faces are in alinement.

SAMUEL SEGAL. 

